Ischnothele caudata Ausserer, 1875

Drolshagen, Bastian & Bäckstam, Christian M., 2021, A taxonomic review of the mygalomorph spider genus Linothele Karsch, 1879 (Araneae, Dipluridae), Zoosystema 43 (10), pp. 163-196 : 192

Ischnothele caudata Ausserer, 1875

Ischnothele caudata Ausserer, 1875: 163 . — Simon 1891: 328; 1892: 187. — Pocock 1895: 224. — F. O. Pickard-Cambridge 1896: 762; 1897: 37. — Raven 1985: 77. — Coyle 1995: 57, f. 14-19, 34, 111-137.

Entomothele pusilla Simon, 1889b: 190 ; 1892: 188. — F. O. Pickard- Cambridge 1896: 764. — Vellard 1945: 199. — Coyle 1995: 57, f. 14-19, 34, 111-137.

Thelechoris zebrina Simon, 1891: 329 ; 1892: 187. — F. O. Pickard- Cambridge 1896: 764; 1897: 37. — Coyle 1995: 57, f. 14-19, 34, 111-137.

Ischnothele guianensis (or guyanensis) (misidentification): Simon, 1891b: 551. — F. O. Pickard-Cambridge 1896: 762; 1897: 37 (in part). — Banks 1909: 195; 1929: 54. — Mello-Leitao 1923: 85 (in part). — Petrunkevitch 1925: 65. — Bücherl 1967: 117 (in part). — Platnick & Shadab 1978: 5. — Vollrath 1978: 351. — Nentwig & Wissel 1986: 595. — Strohmenger & Nentwig 1987: 10. — Jantschke & Nentwig 1987: 315. — Coyle & Ketner 1990: 103 (in part). — Coyle 1995: 57, f. 14-19, 34, 111-137.

Thelechoris funesta Fischel, 1927: 61 , figs 1-3. — Coyle 1995: 57, f. 14-19, 34, 111-137.

Thelechoris obtusa Fischel, 1927: 63 , figs 4-6. — Coyle 1995: 57, f. 14-19, 34, 111-137.

Diplura dubia Caporiacco, 1947: 21 ; 1948: 622. n. syn.

Ischnothele sexpunctata Bücherl, Costa & Lucas, 1971: 123 , figs 17, 18. — Mello-Leitao 1941b: 237. — Coyle 1995: 57, f. 14-19, 34, 111-137.

Linothele dubia – Raven 1985: 74.

TYPE MATERIAL. — Ischnothele caudata : Holotype. Mexico • ♀; Yucatan; NHM.

Thelechoris zebrina : Holotype. Nicaragua • imm. ♂; El Polvon; MNHN.

Thelechoris funesta : Holotype. Venezuela • ♂; Maracay or Caracas ; probably lost.

Thelechoris obtuse : Holotype. Venezuela • ♂; Maracay or Caracas ; probably lost.

Entomothele pusilla : Lectotypes (as designated by Coyle 1995). Venezuela • 1 ♂ and 1 ♀; Orinoco ; MNHN

Diplura dubia : Syntypes. Guyana • 1 undet.; Port Diamond ; 1931; Beccari leg.; MZUF [160] examined • 1 undet.; Campo IV, Demerara, Canister Falls ; 1936; Romiti leg.; MZUF [161] examined .

Ischnothele sexpunctata : Syntypes. Colombia • 3 ♀; Bogota; MNRJ no. 1035 lost .

REMARKS

The MZUF catalog ( Berdondini & Whitman 2001) mentions two syntypes of D. dubia , whereas Caporiacco (1947) mentions only a single female. Either labels have been swapped, or the catalog information is incorrect. The species was redescribed the following year ( Caporiacco 1948) and the redescription mentions cuspules on the inner anterior maxillary corner. One specimen of the syntype collection lacks maxillary cuspules, securely indicating the specimen bearing maxillary cuspules to be Caporiacco’s (1948) specimen. The specimen shows a combination of characters that cannot be found in the Diplurinae , such as a single row of teeth on paired tarsal claws, flexible apical segment of the PLS, presence of two rows of conical teeth ventrally on the chelicerae, rigid leg tarsi and the absence of scopuliform setae on anterior leg tarsi. This character combination indicates a misidentified Ischnothele Ausserer, 1875 , whereas a single row of teeth on paired tarsal claws, alongside the absence of maxillary cuspules found in the other syntype might indicate a misidentified Masteriinae or Euagridae. Caporiacco’s (1948) specimen can be found conspecific only with Ischnothele caudata Ausserer, 1875 per Coyle (1995). We thereby consider Ischnothele caudata Ausserer, 1875 a senior synonym of Diplura dubia Caporiacco, 1947 n. syn.